When you are sober, you are not drunk.
When Dad was sober he was a good father.
A sober person is serious and thoughtful.
We are now far more sober and realistic...
The euphoria is giving way to a more sober assessment of the situation.
`There's a new development,' he said soberly.
Sober colours and clothes are plain and rather dull.
He dresses in sober grey suits.
...sober-suited middle-aged men.
* used to и would для прошедшего времени.